Nonlinear Flexibility Effects on Flight Dynamics and Control of Next-Generation Aircraft
Goulart, P. (Swiss Federal Institute of Technology, Zurich, Switzerland)
Airbus UK, BAE Systems, DSTL, QinetiQ
UK Engineering and Physical Sciences Research Council (EPSRC)
Very Flexible Aircraft
UAV configuration - pressure coefficient distribution computed using the CFD solver of the University of Liverpool.
Flexible multi-beam configuration subject to a set of follower and dead loads to investigate the coupling effect of structural and rigid-body dynamics due to large gyroscopic motion.
Flight dynamics response of a HALE UAV configuration following an initial roll perturbation to demonstrate the effect of flexibility on the aircraft stability characteristics: unstable rigid aircraft (blue) compared to a very flexible stable configuration (red).
Geometrically-nonlinear deformations of a HALE UAV configuration for varying follower distributed load on wing and tail.